Shutter Blue Color – #666e7f: Codes and Complete Breakdown
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The Shutter Blue color hex code is #666e7f, and it is composed of 40% red, 43% green and 50% blue.
Shutter Blue is a dark, dull, desaturated, and cool color at 20% saturation. It has a contrast ratio of 5.12:1 against a white background, which passes WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Shutter Blue color (#666e7f) against light backgrounds.

Shutter Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#666e7f
Shutter Blue Color Codes and Information
Here’s a complete breakdown of the color Shutter Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #666e7f |
| RGB | rgb(102,110,127) |
| HSL | hsl(221,10.9%,44.9%) |
| CMYK | 20, 13, 0, 50 |
| HSV | 221, 20, 50 |
| RGB % | 40, 43, 50 |
| XYZ | 14.9, 15.5, 22.3 |
| LAB | 46.3, 1, -10.5 |
| Color Category | Dark |
| Color Family | Blue |
| Saturation | 20% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 5.12 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 4.1 (fails WCAG AA) |
Similar Colors to Shutter Blue Color
#16b8f3

Zima Blue
#00308f

US Air Force Blue
#8093a4

Dusty Blue
#4169e1

Royal Blue
#dde0df

Barely Blue
#9bb3bc

Blue Shell
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Weak Blue
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Twin Blue










